What is 4/5 + 9/11?

Let's add

4

5

&plus;

9

11

Step 1

We still have different denominators (bottom numbers), though, so we need to get a common denominator. This will make the bottom numbers match. Multiply the denominators together first. Now, multiply each numerator by the other term's denominator.

Now we multiply 4 by 11, and get 44, then we multiply 5 by 11 and get 55.

Now for the second term. You multiply 9 by 5, and get 45, then multiply 5 by 11 and get 55.